CN207667372U - A kind of tail gas condensing liquid recovery system - Google Patents
A kind of tail gas condensing liquid recovery system Download PDFInfo
- Publication number
- CN207667372U CN207667372U CN201721666155.4U CN201721666155U CN207667372U CN 207667372 U CN207667372 U CN 207667372U CN 201721666155 U CN201721666155 U CN 201721666155U CN 207667372 U CN207667372 U CN 207667372U
- Authority
- CN
- China
- Prior art keywords
- connect
- collecting tank
- water collection
- condensation water
- ethylene glycol
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Treating Waste Gases (AREA)
Abstract
A kind of tail gas condensing liquid recovery system of the utility model includes stripper, condensation water collection tank, esterification water collecting tank, ethylene glycol collecting tank, rectification process tower, filter, liquid level gauge, level chain device, delivery pump, check-valves, water meter, spark arrester, ball valve, stripper is connect by ball valve with condensation water collection tank, condensation water collection tank is connect by ball valve with filter, filter is connect with delivery pump, delivery pump passes through ball valve, check-valves, water meter and ethylene glycol collecting tank and connects successively, and ethylene glycol collecting tank is connect with rectification process tower；Esterification water collecting tank is connect with condensation water collection tank, wherein carrying spark arrester on esterification water collecting tank；Band liquid level gauge on the condensation water collection tank, liquid level gauge connect level chain device, and level chain device controls delivery pump.Tthe utility model system reduce Sewage Disposal live load, solve condensed water leakage-proof, caused by environmental pollution, recycle ethylene glycol, it is cost-effective.
Description
Technical field
The invention belongs to biological chemical field, it is related to a kind of tail gas condensing liquid recovery system in polyester device production process.
Background technology
In polyester production process, using Zhong Fang institutes five autoclaves process technology, by unit with slurry, esterification unit, whole poly- unit
Composition, in stage slurry tank with slurry with the presence of tail gas；The ethylene glycol mixed vapour that esterification unit esterification one, esterification two generate enters
Rectification process tower carries out rectifying, and the lighter component vapor that rectification process tower is isolated is after plate heat exchange, also with the presence of tail gas；
There are three reaction kettles for polycondensation unit：Polycondensation vessel I, polycondensation vessel II, whole polycondensation vessel.There are two vacuum systems, wherein vacuum equipment liquid
Ring vacuum pump generates a large amount of tail gas in the process of running, and the main ingredient of tail gas is the mixture of ethylene glycol and water.It is normal right
The processing method of tail gas is passed through after slurry tank tail gas, process tower tail gas and vacuum system tail gas are sucked stripper using stripper
Steam heating is crossed, is condensed, organic matter is handled by pipeline to Sewage Disposal.
But it using the tail gas generated in above method processing polyester device production process, has the following disadvantages：
It heats, is condensed, the chemical oxygen demand of condensed water by steam 1. being sucked tail gas after stripper using stripper
It is 130021 to measure (COD) detected value, and the condensed water of high COD is directly entered Sewage Disposal, has aggravated the work of Sewage Disposal
Load；
2. the condensed water of high COD leaks, can cause environmental pollution；
3. because containing a large amount of ethylene glycol in tail gas, cause to waste.
Invention content
The purpose of this utility model is that making up the deficiencies in the prior art, a kind of tail gas condensing liquid recycling system is provided
System, reduces the live load of Sewage Disposal, solves condensed water leakage-proof, caused by environmental pollution, recycle ethylene glycol, save at
This.
In order to achieve the above objectives, a kind of tail gas condensing liquid recovery system, it is characterised in that received including stripper, condensed water
Collect tank, esterification water collecting tank, ethylene glycol collecting tank, rectification process tower, filter, liquid level gauge, level chain device, delivery pump,
Check-valves, water meter, spark arrester, ball valve, stripper are connect by ball valve with condensation water collection tank, and condensation water collection tank passes through ball valve
It is connect with filter, filter is connect with delivery pump, and delivery pump passes through ball valve, check-valves, water meter and ethylene glycol collecting tank successively
Connection, ethylene glycol collecting tank are connect with rectification process tower；Esterification water collecting tank is connect with condensation water collection tank, and wherein esterification water is received
Collect and carries spark arrester on tank；Band liquid level gauge on the condensation water collection tank, liquid level gauge connect level chain device, level chain
Device controls delivery pump.
In above-mentioned technical proposal, the condensation water collection tank uses SUS304 stainless steels, wall thickness 30mm, for receiving
The tail gas for collecting stripper condensation, prevents corrosion of the condensed water to equipment；
In above-mentioned technical proposal, the filter is Y-shaped filter, 40 mesh of eyelet, for miscellaneous in condensate liquid
Matter is filtered, and ensures that the lime set being delivered in ethylene glycol collecting tank is clean.
In above-mentioned technical proposal, the check-valves be for ensure that delivery pump is automatically stopped after, be not in lime set
Flow backwards phenomenon；
In above-mentioned technical proposal, the water meter calculates benefit for adding up condensation water quantity, convenient for statistics；
In above-mentioned technical proposal, the liquid level gauge is the liquid level for showing condensation water collection tank；
In above-mentioned technical proposal, the level chain device is condensation water collection tank liquid level height report, the interlocking of low report, when cold
When the liquid level of Condensed water collection tank reaches setting height report liquid level, delivery pump directly initiates, defeated when liquid level is down to the low report liquid level of setting
Pump is sent to be automatically stopped operation；
In above-mentioned technical proposal, the spark arrester on the esterification water collecting tank is gas-entrained in condensate liquid for alleviating
It cannot can smoothly enter into condensation water collection tank because with pressure；
In above-mentioned technical proposal, the esterification water collecting tank and two condensation water collection lines of condensing hot air furnace distillation process
Road can be cut in time when being mesh to prevent condensing hot air furnace distillation process or the arbitrary circuit of esterification water collecting tank from occurring abnormal
It shifts to another circuit to be handled, avoids that tail gas is directly drained into air, protect atmospheric environment not contaminated.
Tthe utility model system by hot well to condensate liquid recycle, by condensate liquid carry out rectifying, light group
Point water lithium refrigeration system application is brominated by heat-exchange system, the ethylene glycol of heavy constituent injects use temporarily except esterification system, more
Remaining ethylene glycol enters slurry tank and carries out preparation slurry.
The beneficial effects of the invention are as follows：
1）By carrying out condensing recovery to tail gas, the live load of Sewage Disposal is reduced；
2）By being esterified water collecting tank and two condensation water collection circuits of condensing hot air furnace distillation process, solves condensed water and let out
Leakage, caused by environmental pollution the problem of；
3）Reuse ethylene glycol saves production cost.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model.
Wherein：1 is stripper；2 be condensate liquid collecting tank；3 be esterification water collecting tank；4 be ethylene glycol collecting tank；5 be slurry
Batch can tail gas；6 be process tower tail gas；7 be vacuum system tail gas；8 be liquid level gauge；9 be filter；10 be level chain device；
11 be delivery pump；12 be check-valves；13 be water meter；14 be spark arrester；15 be rectification process tower；16A-G is ball valve.
Specific implementation mode
The utility model is described in detail with reference to embodiment.
The utility model discloses a kind of tail gas condensing liquid recovery system, including stripper (1), condensation water collection tank (2),
It is esterified water collecting tank (3), ethylene glycol collecting tank (4), rectification process tower (15), filter (9), liquid level gauge (8), level chain dress
(10), delivery pump (11), check-valves (12), water meter (13), spark arrester (14), ball valve are set, stripper (1) is by ball valve and condensation
Water collecting tank (2) connects, and condensation water collection tank (2) passes through ball valve（16F）It is connect with filter (9), filter and delivery pump
(11) it connects, delivery pump passes through ball valve successively（16G）, check-valves (12), water meter (13) connect with ethylene glycol collecting tank (4), second
Glycol collecting tank is connect with rectification process tower (15)；Esterification water collecting tank (3) is connect with condensation water collection tank, and wherein esterification water is received
Collect and carries spark arrester (14) on tank；Band liquid level gauge (8) on the condensation water collection tank, liquid level gauge connect level chain device
(10), level chain device controls delivery pump.
As shown, stripper (1) aspirated slurry tank tail gas (5), process tower tail gas (6), vacuum system tail gas (7)
Come, into tail gas into stripper (1) inlet, increases ball valve（16A）With（16B）, close ball valve（16C）, open ball valve（16D）
With（16E）, tail gas condensing liquid stream is made to enter condensation water collection tank（2）In, when condensation water collection tank（2）Liquid level gauge（8）It rises to
When up to setting numerical value, level chain device is triggered（10）, start delivery pump（11）, condensate liquid is delivered to rectification process tower（15）
Middle carry out rectifying, when condensation water collection tank（2）Liquid level gauge（8）When down to setting numerical value, level chain device is triggered（10）Make
Delivery pump（11）It is out of service, because conveying pump discharge increases check-valves（12）, after ensure that delivery pump is automatically stopped, be not in
Lime set flows backwards phenomenon.Tail gas condensing liquid is in rectification process tower（15）The middle vapor for carrying out rectifying light component enters lithium bromide refrigerating
Machine recycles, and the ethylene glycol of heavy constituent enters esterification one, esterification two is used for adjusting esterification yield, and the extra slurry tank that enters carries out
It is with slurry.Tail gas condensing liquid passes through delivery pump（11）Before, there is filter（9）Filtering, in production periodically to filter（9）It dismantles
Cleaning, ensure that the clean of condensate liquid, while reduce the chocking-up degree of conveying Pump Shaft Seal, spiral case, impeller.
In polyester production process, if condensing hot air furnace distillation process occurs abnormal, by circuit switching to esterification water
Collecting tank avoids that tail gas is directly drained into atmospheric treatment, protects atmospheric environment not contaminated.
It is sharp again that Tthe utility model system completes the recycling to polyester system tail gas, rectifying, the recycling of heavy constituent ethylene glycol
With the COD30000 or so of condensed water alleviates processing pressure of the sewage plant to COD after rectifying.Lime set collecting amount 18.24Kg/h,
Ethylene glycol content in tail gas condensing liquid：29.7%, ethylene glycol unit price：7000 yuan/ton, year ethylene glycol yield reach 47.455 tons,
Ethylene glycol saves expense up to 33.2185 ten thousand/year.
Certainly, above description is not limitation of the utility model, and the utility model is also not limited to the example above, this skill
The those of ordinary skill in art field variations, modifications, additions or substitutions made in the essential scope of the utility model, also belong to
In the scope of protection of the utility model.
Claims (3)
1. a kind of tail gas condensing liquid recovery system, it is characterised in that including stripper, condensation water collection tank, esterification water collecting tank,
Ethylene glycol collecting tank, rectification process tower, filter, liquid level gauge, level chain device, delivery pump, check-valves, water meter, spark arrester,
Ball valve, stripper are connect by ball valve with condensation water collection tank, and condensation water collection tank is connect by ball valve with filter, filter
Connect with delivery pump, delivery pump passes through ball valve successively, check-valves, water meter and ethylene glycol collecting tank connect, ethylene glycol collecting tank with
Rectification process tower connects；Esterification water collecting tank is connect with condensation water collection tank, wherein carrying spark arrester on esterification water collecting tank；Institute
Band liquid level gauge on the condensation water collection tank stated, liquid level gauge connect level chain device, and level chain device controls delivery pump.
2. system according to claim 1, it is characterised in that the condensation water collection tank uses SUS304 stainless steels
Matter, wall thickness 30mm.
3. system according to claim 1, it is characterised in that the filter is Y-shaped filter, 40 mesh of eyelet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721666155.4U CN207667372U (en) | 2017-12-05 | 2017-12-05 | A kind of tail gas condensing liquid recovery system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721666155.4U CN207667372U (en) | 2017-12-05 | 2017-12-05 | A kind of tail gas condensing liquid recovery system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207667372U true CN207667372U (en) | 2018-07-31 |
Family
ID=62965906
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721666155.4U Active CN207667372U (en) | 2017-12-05 | 2017-12-05 | A kind of tail gas condensing liquid recovery system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207667372U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110478926A (en) * | 2019-08-29 | 2019-11-22 | 云南国润香料制造有限公司 | A kind of device and method of evaporator condensation method recycling tai gas of rectifying |
-
2017
- 2017-12-05 CN CN201721666155.4U patent/CN207667372U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110478926A (en) * | 2019-08-29 | 2019-11-22 | 云南国润香料制造有限公司 | A kind of device and method of evaporator condensation method recycling tai gas of rectifying |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101579595B (en) | Novel process for treating fermented waste gas of amino acid by utilizing spray cooling method | |
| CN207667372U (en) | A kind of tail gas condensing liquid recovery system | |
| CN105315132A (en) | System and method used for energy utilization between ethylene glycol device dehydrating tower and refining tower | |
| CN205549656U (en) | Gaseous state solvent condensation recovery device | |
| CN209101692U (en) | A kind of solid waste one drying system based on environmental protection | |
| CN204026651U (en) | A kind of closed condensate water recovery device | |
| CN206454298U (en) | A kind of chemical industry rectifier unit | |
| CN206853155U (en) | A kind of ethyl acetate reclaimer | |
| CN204648619U (en) | Condensing hot air furnace case | |
| CN201147645Y (en) | Intelligent temperature control acid mist condensation purifying equipment | |
| CN204841338U (en) | Gas liquid separation device | |
| CN208785791U (en) | A kind of MVR evaporator based on discharging anti-block apparatus | |
| CN111747467A (en) | Sewage treatment method and device | |
| CN110715506A (en) | Compression precooling device for oxygen production and working method thereof | |
| CN205033370U (en) | Evaporate and press cauldron waste heat recovery device of system | |
| CN206887263U (en) | One kind plating Chrome-free roughening chemical solution purification reclaiming system | |
| CN110157843A (en) | A kind of continuous reclaimer of blast furnace slag quenching water thermal energy | |
| CN206771701U (en) | Central air-conditioning condensate water recovery device and central air conditioner system | |
| CN208809500U (en) | Mix cleaning agent separator | |
| CN110498468A (en) | Phenolic wastewater treatment extraction tower and stripping column Processes and apparatus | |
| CN109307407A (en) | A kind of solid waste one drying system based on environmental protection | |
| CN220750858U (en) | Steam condensate water recycling device | |
| CN205151879U (en) | Biochemical pond intensification system of air compressor machine waste heat retrieves | |
| CN220159253U (en) | Device for continuously recycling ethanol from special chemical energy-containing waste liquid | |
| CN110917556A (en) | Chlorosilane and high polymer leakage cleaning system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |